Finding the Fourth Proportional to 31,300.77, 43,195.91 and 17,154.21

Step by Step Solution

1. Step 1: Write the proportion equation
   31,300.77 : 43,195.91 = 17,154.21 : x
2. Step 2: Convert to fraction form
   31,300.77/43,195.91 = 17,154.21/x
3. Step 3: Cross multiply
   31,300.77x = 43,195.91 × 17,154.21
4. Step 4: Simplify right side
   31,300.77x = 740,991,625.51
5. Step 5: Solve for x
   x = 740,991,625.51/31,300.77
6. Step 6: Final answer
   x = 23,673.27